<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input
        v-model="listQuery.goodsId"
        clearable
        size="mini"
        class="filter-item"
        style="width: 200px"
        placeholder="请输入商品编号"
      />
      <el-button
        v-permission="['GET /merchant/groupon/list']"
        size="mini"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
        >查找</el-button
      >
      <el-button
        v-permission="['POST /merchant/groupon/create']"
        size="mini"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
        >添加</el-button
      >
      <el-button
        :loading="downloadLoading"
        size="mini"
        class="filter-item"
        type="warning"
        icon="el-icon-download"
        @click="handleDownload"
        >导出
      </el-button>
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      size="small"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row
    >
      <el-table-column
        align="center"
        min-width="80px"
        label="商品ID"
        prop="goodsId"
      />

      <el-table-column
        align="center"
        min-width="200"
        label="名称"
        prop="goodsName"
      />

      <el-table-column align="center" property="picUrl" label="图片">
        <template slot-scope="scope">
          <img :src="scope.row.picUrl" width="40" />
        </template>
      </el-table-column>

      <el-table-column
        align="center"
        min-width="80px"
        label="团购优惠"
        prop="discount"
        sortable
      />

      <el-table-column
        align="center"
        min-width="80px"
        label="团购要求"
        prop="discountMember"
      />

      <el-table-column
        align="center"
        min-width="120px"
        label="开始时间"
        prop="addTime"
      />

      <el-table-column
        align="center"
        min-width="120px"
        label="结束时间"
        prop="expireTime"
      />

      <el-table-column
        align="center"
        min-width="150px"
        label="操作"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            v-permission="['POST /merchant/groupon/update']"
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
            >编辑</el-button
          >
          <el-button
            v-permission="['POST /merchant/groupon/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改对话框 -->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="dataForm"
        status-icon
        label-position="left"
        label-width="150px"
        style="width: 500px; margin-left: 50px"
      >
        <el-form-item label="商品ID" prop="goodsId">
          <el-input v-model="dataForm.goodsId" />
        </el-form-item>
        <el-form-item label="团购折扣金额" prop="discount">
          <el-input v-model="dataForm.discount" />
        </el-form-item>
        <el-form-item label="团购人数要求" prop="discountMember">
          <el-input v-model="dataForm.discountMember" />
        </el-form-item>
        <el-form-item label="过期时间" prop="expireTime">
          <el-date-picker
            v-model="dataForm.expireTime"
            type="datetime"
            placeholder="选择日期"
            value-format="yyyy-MM-dd HH:mm:ss"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button
          v-if="dialogStatus == 'create'"
          type="primary"
          @click="createData"
          >确定</el-button
        >
        <el-button v-else type="primary" @click="updateData">确定</el-button>
      </div>
    </el-dialog>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"
    />

    <el-tooltip placement="top" content="返回顶部">
      <back-to-top :visibility-height="100" />
    </el-tooltip>
  </div>
</template>

<script>
import {
  listGroupon,
  publishGroupon,
  deleteGroupon,
  editGroupon,
} from "@/api/business/groupon";
import BackToTop from "@/components/BackToTop";
import Pagination from "@/components/Pagination"; // Secondary package based on el-pagination
import { isInteger } from "@/utils/validate";

export default {
  name: "GrouponRule",
  components: { BackToTop, Pagination },
  data() {
    return {
      list: [],
      total: 0,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        goodsId: undefined,
        sort: "add_time",
        order: "desc",
      },
      downloadLoading: false,
      dataForm: {
        id: undefined,
        goodsId: "",
        discount: "",
        discountMember: "",
        expireTime: undefined,
      },
      dialogFormVisible: false,
      dialogStatus: "",
      textMap: {
        update: "编辑",
        create: "创建",
      },
      rules: {
        goodsId: [{ required: true, message: "商品不能为空", trigger: "blur" }],
        discount: [
          { required: true, message: "折扣金额不能为空", trigger: "blur" },
          { validator: isInteger, trigger: "blur" },
        ],
        discountMember: [
          { required: true, message: "团购人数不能为空", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getList();
  },
  methods: {
    getList() {
      this.listLoading = true;
      listGroupon(this.listQuery)
        .then((response) => {
          this.list = response.data.data.items;
          this.total = response.data.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        goodsId: "",
        discount: "",
        discountMember: "",
        expireTime: undefined,
      };
    },
    handleCreate() {
      this.resetForm();
      this.dialogStatus = "create";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    createData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          publishGroupon(this.dataForm)
            .then((response) => {
              this.list.unshift(response.data.data);
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "创建团购规则成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleUpdate(row) {
      this.dataForm = Object.assign({}, row);
      this.dialogStatus = "update";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    updateData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          editGroupon(this.dataForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.dataForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.dataForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "更新团购规则成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleDelete(row) {
      deleteGroupon(row)
        .then((response) => {
          this.$notify.success({
            title: "成功",
            message: "删除团购规则成功",
          });
          const index = this.list.indexOf(row);
          this.list.splice(index, 1);
        })
        .catch((response) => {
          this.$notify.error({
            title: "失败",
            message: response.data.errmsg,
          });
        });
    },
    handleDownload() {
      this.downloadLoading = true;
      import("@/vendor/Export2Excel").then((excel) => {
        const tHeader = [
          "商品ID",
          "名称",
          "首页主图",
          "折扣",
          "人数要求",
          "活动开始时间",
          "活动结束时间",
        ];
        const filterVal = [
          "id",
          "name",
          "pic_url",
          "discount",
          "discountMember",
          "addTime",
          "expireTime",
        ];
        excel.export_json_to_excel2(tHeader, this.list, filterVal, "商品信息");
        this.downloadLoading = false;
      });
    },
  },
};
</script>
